Use After Free in Linux Kernel
CVE-2023-4387
A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a kernel information leak problem.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (13.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Linux Kernel
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-425.3.1.el8
- Red Hat Enterprise Linux 9 — versions 0:5.14.0-162.6.1.el9_1
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2022:7683 (vendor-advisory)
- access.redhat.com/errata/RHSA-2022:8267 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2023-4387 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8 (Patch)
Frequently asked questions
- What is CVE-2023-4387?
- CVE-2023-4387 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.1/10. Published 2023-08-16.
- How severe is CVE-2023-4387?
- High severity. CVSS v3 base score is 7.1 out of 10.